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The Gwda ((ドイツ語:Küddow)) is a river in Poland, a tributary of the Noteć. It is 146 kilometers long and begins at Lake Studnica, northeast of Szczecinek. Its upper course flows through many lakes. It runs through the town of Piła. Special fishing rules and regulations regarding trout are in effect for the following sections of the Gwda:〔(Polish Angling Association ), retrieved on September 26, 2007.〕 *Downstream from Koszalin Province boundary and upstream from road bridge in Ledyczek excluding reservoir between Wegorzewo and Lomczewo. *Downstream from road bridge in Ledyczek and upstream from Podgaje Reservoir. *Downstream from dam in Tarnowka and upstream from road bridge in Krepsko. The water of the Gwda was one of the purest in Poland in 1975. However, the water flows have since been degraded due to cities pumping non-processed sewage and industrial plants flushing chemicals and oil.〔(Przybylski, M. (1991) "Things are not well in the province of Piła" Green Brigades, No. 4 Spring. ), retrieved on September 26, 2007.〕 ==Footnotes== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gwda」の詳細全文を読む スポンサード リンク
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